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Join Date: Mar 2022
Location: bay area CA
Posts: 54
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Is my torsion bar dead or okay?
Pretty quick question which I think I might know the answer to already from some quick searches on here but its always nice to get confirmation from a second hand source
 In the process of tearing down and rebuilding the front and rear suspension and the front torsion bars were a bit stuck in the control arm. When I finally got them out, I noticed that there was a small blemish in the coating - probably scoring from the TB hitting the inside of the CA, I assume. I feel like they are going to need to be replaced but wondering if its a slight overreaction, but let me know your thoughts!  
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77 Porsche 911S with 3.0 power (79) |
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03-30-2025, 01:07 PM
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Some clean up and rust prevention and a good coating with decent paint will be fine. The bar is still OK. You just want to stop any corrosion. I have had one like that (2nd hand replacement) in my SC for over 20 yrs.
My 2c. Alan
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83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-) |
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03-30-2025, 05:35 PM
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Since you've got them out I'd buy drilled ones. Probably similar cost to getting them cerrakoted or whatever.
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03-30-2025, 05:41 PM
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Join Date: May 2021
Location: Nash County NC
Posts: 101
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Think I would try to clean them up with a wire wheel to remove the surface corrosion and loose paint. Then I’d paint them (but not the splines) and coat them well all over with axle grease to prevent any future corrosion and install. My $0.02.
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76 911S Signature Edition w/ 3.2 |
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03-30-2025, 06:36 PM
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PCA Member since 1988
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Just sandblast the corroded areas and repaint them. Even better would be shot peening. The blasting puts the surface in compression, which helps prevent stress cracks from forming. DO NOT use a rust remover, rust reformer, etc. Those contain phosphoric acid, which can cause hyrogen embrittlement of the surface and cause cracks to form.
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1973.5 911T with RoW 1980 SC CIS stroked to 3.2, 10:1 Mahle Sport p/c's, TBC exhaust ports, M1 cams, SSI's. RSR bushings & adj spring plates, Koni Sports, 21/26mm T-bars, stock swaybars, 16x7 Fuchs w Michelin Pilot Sport A/S 3+, 205/55-16 at all 4 corners. Cars are for driving. If you want art, get something you can hang on the wall! Last edited by PeteKz; 03-31-2025 at 10:55 PM.. |
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03-31-2025, 10:52 PM
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Join Date: Mar 2022
Location: bay area CA
Posts: 54
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Amazing thank you for everyone's suggestions and 2c. Looks like I'll be going the route of blasting or removing the corroded areas and painting them. No rust remover or reformer.
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77 Porsche 911S with 3.0 power (79) |
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04-01-2025, 03:42 PM
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There is a rust prevent treatment that does not etch. I am at the bottom of the world - so the products available may well be different - but i am sure you would have an equivalent. Ours is a CRC product - milky white. It bonds with the rust and forms an organic coating over the area. Which can then be painted. No acid treatment involved.
Alan
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83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-) |
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04-01-2025, 06:47 PM
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Join Date: Oct 2012
Location: Kent, UK
Posts: 42
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I'd clean that area of missing powder coat, then paint on some epoxy primer. You could then paint over with black if you wish. Just remember to coat the bars in grease when they go back in.
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04-01-2025, 06:52 PM
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Alan, I've seen that CRC milky stuff. I believe it contains phosphoric acid, so be sure to check the label before using it on springs.
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1973.5 911T with RoW 1980 SC CIS stroked to 3.2, 10:1 Mahle Sport p/c's, TBC exhaust ports, M1 cams, SSI's. RSR bushings & adj spring plates, Koni Sports, 21/26mm T-bars, stock swaybars, 16x7 Fuchs w Michelin Pilot Sport A/S 3+, 205/55-16 at all 4 corners. Cars are for driving. If you want art, get something you can hang on the wall! |
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04-02-2025, 12:52 AM
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As others have said, just clean up the area, put some rust preventer on it, nothing to worry about.
Ant.
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"But instinct is something which transcends Knowledge We have undoubtedly certain finer fibres that enable us to perceive truths when logical deduction or any other wilful effort of the brain is futile" Nikola Tesla |
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04-02-2025, 02:02 AM
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Eggy
